TheLoyale Posted December 22, 2011 Author Share Posted December 22, 2011 A better IAC is what fixed the issue. The Sensor inside the IAC which reads water temp failed and was giving inaccurate readings. $20 IAC fixed the issue which has gone on for 6 months. Cleaning an IAC is a waste of time for the most part I have found, if you have it off, replace it with a better lower milage part. Link to comment Share on other sites More sharing options...
Olnick Posted December 22, 2011 Share Posted December 22, 2011 A better IAC is what fixed the issue. The Sensor inside the IAC which reads water temp failed and was giving inaccurate readings. $20 IAC fixed the issue which has gone on for 6 months. Cleaning an IAC is a waste of time for the most part I have found, if you have it off, replace it with a better lower milage part. Sorry Sport, but I gotta disagree with you. There is no "Sensor inside the IAC which reads water temp." The ECTS, which sends temp info to the ECU, is near the IACV but not part of it. Glad that $20 IAC solved your problem but most of the time a thorough cleaning of the car's existing IACV works just fine (and it's cheaper!) Link to comment Share on other sites More sharing options...
TheLoyale Posted December 22, 2011 Author Share Posted December 22, 2011 What is the purpose of the coolant lines running in and out of the IAC then? I understand the CTS on the crossover sends (Most) if not all data to the ECU. Link to comment Share on other sites More sharing options...
Olnick Posted December 22, 2011 Share Posted December 22, 2011 What is the purpose of the coolant lines running in and out of the IAC then? To cool--or moderate--the temperature of the IAC body. Same thing coolant does in the rest of the engine. Link to comment Share on other sites More sharing options...
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